MPEC 2012-K75 : P/1994 X1 = 2012 K7 (McNaught-Russell)
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M.P.E.C. 2012-K75 Issued 2012 May 31, 23:30 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. They are published on behalf of Commission 20 of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL https://www.minorplanetcenter.net/ ISSN 1523-6714 P/1994 X1 = 2012 K7 (McNaught-Russell) Observations: PK12K070 $C2012 05 29.60846 20 15 16.22 +17 09 35.2 19.8 NrEK075F65 PK12K070 $C2012 05 29.61077 20 15 16.26 +17 09 36.9 19.9 NrEK075F65 PK12K070 $C2012 05 29.61148 20 15 16.27 +17 09 38.8 20.0 NrEK075F65 PK12K070 `C2012 05 30.40725 20 15 27.40 +17 22 53.9 19.8 NrEK075H06 PK12K070 `C2012 05 30.41233 20 15 27.46 +17 22 59.1 19.9 NrEK075H06 PK12K070 `C2012 05 30.41741 20 15 27.53 +17 23 03.9 19.9 NrEK075H06 Observer details: F65 Haleakala-Faulkes Telescope North. Observers G. Sostero, N. Howes, E. Guido. 2.0-m f/10.0 Ritchey-Chretien + CCD. H06 RAS Observatory, Mayhill. Observer E. Bryssinck. 0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer. Orbital elements: P/1994 X1 = 2012 K7 (McNaught-Russell) Epoch 2012 Dec. 19.0 TT = JDT 2456280.5 T 2012 Dec. 4.48060 TT MPC q 1.2799181 (2000.0) P Q n 0.05399587 Peri. 171.19311 +0.86099558 -0.41122522 a 6.9325928 Node 218.01180 +0.43202256 +0.90185526 e 0.8153767 Incl. 29.07902 +0.26840849 -0.13247987 P 18.25 From 132 observations 1994 Dec. 12-2012 May 30, mean residual 0".72. P/1994 X1 = 2012 K7 (McNaught-Russell) Epoch 1994 Sept. 5.0 TT = JDT 2449600.5 T 1994 Sept. 7.94711 TT MPC q 1.2768682 (2000.0) P Q n 0.05404091 Peri. 171.14746 +0.86134695 -0.41053275 a 6.9287400 Node 218.00951 +0.43127215 +0.90221458 e 0.8157142 Incl. 29.07423 +0.26848793 -0.13218057 P 18.24 From 132 observations 1994 Dec. 12-2012 May 30, mean residual 0".72. Residuals in seconds of arc 941013 607 (2.3+ 8.5+) 941221 413 0.5- 0.1- 950108 372 (3.6+ 1.4-) 941013 607 (5.3+ 0.5+) 941221 413 0.3- 0.2- 950108 372 (4.6+ 1.3-) 941212 413 (1.5- 2.7-) 941221 413 0.1- 0.5+ 950112 413 0.0 0.4- 941212 413 1.9+ 0.4+ 941221 413 0.1+ 0.6+ 950112 413 0.1- 0.6- 941214 422 0.7+ 0.1+ 941222 413 0.2- 0.0 950112 413 0.1- 0.4- 941214 422 (2.8+ 0.7+) 941222 413 0.2- 0.1- 950113 413 0.6+ 0.7+ 941214 897 1.2- 1.2+ 941222 896 0.7- 0.8- 950113 413 0.5+ 0.1- 941214 897 1.7- 0.9- 941223 360 0.1+ 0.4- 950113 413 0.0 0.2+ 941214 897 1.4- 1.4+ 941223 360 0.0 0.0 950114 413 0.0 0.2- 941214 897 0.2- 1.1+ 941223 360 0.1- 0.4+ 950114 413 0.3+ 0.6- 941214 887 1.0+ 1.3- 941223 864 0.5- 0.4- 950115 413 0.1- 0.7- 941214 887 0.9+ 0.5+ 941223 864 0.1- 1.0- 950115 413 0.2+ 0.5- 941215 557 0.5+ 0.1- 941223 864 0.2+ 0.1+ 950124 897 1.1+ 1.7+ 941215 557 0.6+ 0.2+ 941224 897 0.8- 1.6+ 950124 897 (2.5+ 3.7+) 941215 557 0.5+ 0.8+ 941224 897 1.6- 1.0- 950124 897 (2.2+ 4.3+) 941215 557 1.2+ 1.1+ 941224 897 1.2+ 0.7+ 950124 897 (2.6+ 3.2+) 941215 897 1.8+ 0.4- 941224 897 0.5+ 0.8+ 950125 372 0.3+ 1.0+ 941215 897 0.2- 0.3- 941226 292 (2.6+ 2.3+) 950126 360 0.7+ 0.5+ 941215 897 1.9+ 1.6+ 941226 292 (0.9+ 3.3+) 950126 360 0.2- 1.3+ 941215 540 0.2+ 1.5+ 941227 360 0.2- 0.3- 950129 695 0.5- 0.5- 941215 540 0.1+ 0.9+ 941227 360 0.4+ 1.0+ 950129 695 0.4- 0.1- 941215 540 0.7+ 1.2+ 941227 360 0.0 0.5- 950131 372 (3.8- 7.9+) 941216 864 0.2- 0.5- 941228 897 1.6- 0.6- 950201 413 0.0 0.1+ 941216 864 0.1- 0.2- 941228 474 0.2+ 0.3- 950201 413 0.0 0.1- 941216 864 0.0 0.5- 941228 897 0.2- 1.3+ 950201 104 0.1+ 0.3- 941218 413 0.5- 1.2- 941228 474 1.1- 0.2+ 950201 104 0.2+ 0.9+ 941218 413 0.2- 0.6- 941229 897 0.6- 0.9- 950201 104 0.5+ 0.0 941218 413 0.5- 0.8- 941229 372 0.2+ 1.2- 950202 413 0.0 0.2- 941218 413 0.5- 0.4- 941229 897 0.2- 0.3+ 950202 413 0.0 0.8- 941218 413 0.4- 0.3- 941229 887 0.5- 1.2+ 950209 413 0.3+ 0.1- 941218 897 (1.0- 2.1+) 941229 887 0.2+ 1.0+ 950209 413 0.3+ 0.2- 941218 897 0.3+ 0.9- 941229 887 0.5+ 0.0 950220 413 0.8- 0.3- 941218 897 (2.6- 0.5-) 941231 693 (2.2- 0.1-) 950220 413 1.0- 0.3- 941218 897 0.3- 1.0+ 941231 693 1.7- 0.1- 950221 413 1.0- 0.7- 941218 897 (1.7- 2.3+) 941231 693 0.8+ 0.1- 950224 360 (2.3- 0.3+) 941218 897 1.4+ 0.5+ 941231 693 0.7- 0.2+ 950224 360 0.9- 0.9+ 941218 413 0.8- 0.7- 950101 864 0.0 0.5- 950224 360 0.4- 0.3+ 941218 413 0.6- 0.6- 950101 864 0.6- 0.0 950307 413 0.2+ 0.7+ 941219 413 0.0 0.6- 950102 372 0.1+ 0.2+ 950307 413 0.4+ 0.9+ 941219 413 0.5- 0.6- 950102 887 0.2+ 1.8+ 950321 413 0.1- 1.0- 941219 413 0.5- 0.7- 950102 372 1.4+ 1.7- 950321 413 0.0 0.1- 941219 413 0.3- 0.6- 950102 887 1.5+ 0.6+ 950322 413 0.1+ 0.3- 941219 413 0.5- 0.7- 950104 474 0.3+ 0.9- 950417 413 0.6- 0.0 941219 413 0.3- 0.2- 950104 474 0.8- 0.5- 120529 F65 0.5- 0.1- 941219 413 0.6- 0.4+ 950104 372 0.7+ 0.3- 120529 F65 0.3- 0.7- 941220 413 0.8- 0.4- 950105 897 2.0+ 1.0- 120529 F65 0.3- 0.5+ 941220 413 0.4- 0.6- 950105 897 1.0+ 0.3- 120530 H06 0.4+ 0.1- 941220 413 0.6- 0.5- 950105 897 0.7+ 1.6+ 120530 H06 0.4+ 0.0 941220 413 0.5- 0.6- 950106 372 0.0 0.1- 120530 H06 0.5+ 0.3- 941220 413 0.6- 0.5- 950106 372 1.5+ 0.1- Ephemeris: P/1994 X1 (McNaught-Russell) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2012 05 01 20 01 30.7 +09 44 51 2.6296 2.8989 95.1 20.3 20.2 ... 2012 05 16 20 10 20.1 +13 28 57 2.3372 2.7642 104.2 20.8 19.8 ... 2012 05 24 20 13 38.3 +15 37 03 2.1893 2.6918 108.8 20.9 19.5 ... 2012 05 30 20 15 21.8 +17 16 06 2.0829 2.6373 112.1 20.9 19.3 2012 05 31 20 15 35.0 +17 32 49 2.0655 2.6282 112.7 20.9 19.3 2012 06 01 20 15 47.0 +17 49 34 2.0483 2.6191 113.2 20.8 19.2 ... 2012 06 07 20 16 33.2 +19 30 52 1.9478 2.5643 116.3 20.8 19.0 ... 2012 06 15 20 16 20.2 +21 46 37 1.8211 2.4911 120.1 20.7 18.8 ... 2012 06 30 20 11 41.5 +25 51 58 1.6089 2.3532 125.8 20.5 18.2 Gareth V. Williams (C) Copyright 2012 MPC M.P.E.C. 2012-K75


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